Method of manufacturing a thermally assisted magnetic head

Details Method of manufacturing a thermally assisted magnetic head Method of manufacturing a thermally assisted magnetic head

2011-04-26

2011-04-26

Kim, Paul D (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C029S603070, C029S603130, C029S603150, C029S603160, C029S603180, C216S022000, C216S037000, C216S041000, C216S048000, C216S065000, C360S121000, C360S317000

Reexamination Certificate

active

07930817

ABSTRACT:
A method comprises an opposing step of arranging a light-shielding film50having a recessed surface52and a pinhole54formed within the recessed surface52such that an end face54X of the pinhole54of the light-shielding film50on the recessed surface52side and a light exit surface4B oppose each other, while the shortest distance A52between the light-shielding film50and a medium-opposing surface S in a thickness direction of the light-shielding film50is shorter than the shortest distance A54between the end face54X of the pinhole54on the side opposite from a transparent substrate58and the light exit surface4B; a light-emitting step of causing a light-emitting device3to emit emission light3A; and a detecting step of detecting the light transmitted through the pinhole54after being emitted from the light exit surface4B.

REFERENCES:
patent: 2008/0055762 (2008-03-01), Shimazawa et al.
patent: A-2006-185548 (2006-07-01), None

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